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Publication numberUS4101711 A
Publication typeGrant
Application numberUS 05/779,091
Publication dateJul 18, 1978
Filing dateMar 18, 1977
Priority dateMar 18, 1977
Publication number05779091, 779091, US 4101711 A, US 4101711A, US-A-4101711, US4101711 A, US4101711A
InventorsNathan Stillman
Original AssigneeChampion International Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bone resistant packaging material
US 4101711 A
Abstract
A packaging laminate suitable for use in the manufacture, for instance, of bags capable of packaging bulky cuts of meat containing sharp edged bones as prepared subsequent to butchering, comprising a face or outer layer of a polyamide such as nylon, an intermediate non-woven web of synthetic resin filaments, and an inner layer formed by a grease-resistant synthetic-resin film and the bags, pouches and wrappings prepared from such laminates. The web may be spun-bonded polyester, polypropylene or polyethylene. The innermost layer may be an ionomer or an ethylene/acrylic acid copolymer.
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Claims(8)
What is claimed is:
1. A packaging laminate comprising:
a polyamide face film;
a filamentary non-woven synthetic-resin web bonded to said face film; and
a film of an olefinic acid or ester-type synthetic resin resistant to organic solvents affixed to said filamentary web.
2. The laminate defined in claim 1 wherein said filamentary web is spun bonded.
3. The laminate defined in claim 2 wherein said filamentary web is polypropylene.
4. The laminate defined in claim 2 wherein said filamentary web is polyester.
5. The laminate defined in claim 2 wherein said filamentary web is polyethylene.
6. The laminate defined in claim 1 wherein said olefinic acid or ester-type resin is an ethylene/acrylic acid copolymer.
7. The laminate defined in claim 1 wherein said ester-type resin is an ionomer.
8. A bag or pouch prepared from the laminate according to claim 1.
Description
BACKGROUND OF THE INVENTION

This invention relates to a packaging laminate.

More particularly, this invention concerns such a laminate that is capable of being used as a bag for containing bulky cuts of meats having exposed sharp edged bones.

In the meat industry, a frequent problem is the shipping of the bulky meat cuts containing exposed sharp edged bones from the butchering and meat-preparation location to the site where the meat possibly is to be further processed and/or distributed. It is necessary to package the bulky cuts of meat hermetically in order to prevent drying out, exposure to contamination, and access of insects and the like.

The meat cuts are normally relatively bulky and the bones as contained therein often have relatively sharp edges. For this reason it is generally unsatisfactory to simply bag the cuts. It is standard practice either to ship the meat in waxed cartons or the like, or to place separate protectors around the sharp bone edges if bags are to be used. The use of cartons is expensive and wasteful of space. The use of bags necessitates the laborious task of applying the additionally required protectors. These protectors typically comprise woven cloth or synthetic materials impregnated with a waxy compound to give them some flexibility. The cloth or synthetic material is cut and shaped to fit over the sharp ends of the bones and the meat cuts are then bagged. Often an excess of such material is used, with resulting undesirable increase in costs.

OBJECTS OF THE INVENTION

It is therefore an object of the present invention to provide an improved packaging laminate.

Another object is to provide a packaging laminate particularly suitable for the production of a bag capable of holding bulky meat cuts containing bones having exposed sharp edges and the like.

Still another object of the invention is to provide bags or pouches of a laminate structure for containing bulky, sharp edged, greasy objects such as meat cuts having bones.

SUMMARY OF THE INVENTION

These objects are attained according to the present invention in a bag formed as a packaging laminate comprising a polyamide face film bonded to one side of a non-woven filamentary synthetic resin web. On the other side of this web, there is provided a film of an olefinic acid or ester-type synthetic resin resistant to organic solvents. The web may be spun bonded and formed of a synthetic resin such as polypropylene, polyester or polyethylene.

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 is a schematic cross-sectional view of a laminate embodying the present invention;

FIG. 2 is a cross-section through another embodiment of a packaging laminate according to this invention.

DETAILED DISCLOSURE

The outer polyamide face film is typically a nylon, such as nylon 6, nylon 66 or biaxial nylon. The middle layer, a non-woven filamentary synthetic resin web may, if desired, be impregnated with a waxy substance for added strength and pliability. The olefinic acid or ester type resin layer, which will be the inside of the bag formed by the laminate, functions as a sealant. It comprises, for example, an ethylene/acrylic acid copolymer or an ionomer, such as is sold under the trademark "Surlyn" by the DuPont Company. The three layers are bonded together by a suitable adhesive or primer by methods well known in the art. Where the non-woven synthetic resin web layer is wax impregnated, the wax itself may also serve as the adhesive or as a component of the adhesive system.

It has suprisingly been found that the above-described packaging laminate offers extreme strength and resistance to ripping, puncturing and tearing. The combination of the polyamide face film and the filamentary synthetic resin web bonded thereto makes a laminate of extremely good puncture resistance and excellent strength. At the same time, the bag lining formed of an olefinic acid or ester-type synthetic resin as described above prevents any grease or the like on the meat and/or bones contained therein from saturating through the bag formed by the laminate. Thus, it is possible to simply load the cuts of meat containing the bones with sharp edges into a bag formed of such a film and ship the meat cuts in this bag or to otherwise suitably wrap them in sheets of the laminated structure. The use of space-consuming and impractical cartons can be completely eliminated and the likelihood that the bags will be cut through or break open during transit is almost completely eliminated. Furthermore, since the meat cuts themselves are relatively indestructible, it is possible with such packaging to greatly ease handling and reduce shipping costs.

SPECIFIC DESCRIPTION OF PREFERRED EMBODIMENTS

As shown in FIG. 1, the packaging laminate basically comprises three layers. The outermost layer 1 is formed of a polyamide, here Nylon 6. The central layer 2 is a non-woven synthetic resin web here made of polypropylene, but which could equally well be made of filaments of polyester or polyethylene. Bonded to the other side of this web 2 is a layer 3 of an olefinic acid or ester type resin, here an ionomer synthetic resin sold under the trademark "Surlyn."

FIG. 2 shows another laminate having the same layer 1 as described with reference to FIG. 1, but bonded here to a layer 2' of a spun-bonded synthetic resin, here polyethylene. It would also be possible to use a spun-bonded polypropylene or polyester. In this arrangement also the innermost layer 3' is formed of an ethylene/acrylic acid copolymer. Such a copolymer is highly grease-resistant so that a bag formed of the laminate shown in FIG. 2 cannot be saturated through from the side of the layer 3' even if relatively greasy or oily meat cuts are place in it.

It is of course possible to use the layer 3 of FIG. 1 instead of the layer 3' of FIG. 2 and vice versa. Similarly, the layers 2 and 2' could be reversed.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2931732 *Dec 24, 1957Apr 5, 1960Du PontFresh meat package and method
US3025167 *Sep 19, 1960Mar 13, 1962American Can CoFood package
US3423231 *May 20, 1965Jan 21, 1969Ethyl CorpMultilayer polymeric film
US3697368 *Feb 26, 1971Oct 10, 1972Allied ChemPolyamide-polyethylene composite films
US3758373 *Apr 12, 1971Sep 11, 1973Celanese CorpSpray-spun continuous tubular structure
US3932693 *Jun 3, 1974Jan 13, 1976Continental Can Company, Inc.Laminated packaging film having low vapor and gas permeability
US3949135 *Jun 24, 1969Apr 6, 1976Tenneco Chemicals, Inc.Structured film
US3955040 *May 24, 1974May 4, 1976W. R. Grace & Co.Polyamide film laminate with entrapped liquid
US3969471 *Jan 2, 1973Jul 13, 1976Sun Research And Development Co.Process of manufacturing chromic acid treated foam fibrillated webs
US3997383 *Mar 10, 1975Dec 14, 1976W. R. Grace & Co.Cross-linked amide/olefin polymeric laminates
Non-Patent Citations
Reference
1 *Modern Plastics, Apr. 1968, "It's Paper, Sheet, Fabric, It's Spin-Bonded", pp. 93-96.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4215508 *Sep 28, 1978Aug 5, 1980Research Products CompanyApparatus and method for fumigating stored agricultural commodities
US4239111 *May 21, 1979Dec 16, 1980Laminating & Coating CorporationFlexible pouch with cross-oriented puncture guard
US4267960 *Aug 29, 1979May 19, 1981American Can CompanyBag for vacuum packaging of meats or similar products
US4391871 *Dec 9, 1982Jul 5, 1983Milliken Research CorporationMeat packaging shroud
US4393114 *Dec 9, 1982Jul 12, 1983Milliken Research CorporationMeat packaging material
US4417659 *Apr 6, 1981Nov 29, 1983Hatchell J WX-ray film and medical record organizer
US4653644 *Jun 18, 1984Mar 31, 1987Degesch GmbhPackage for toxic fumigant material in pellet or tablet form and method of making same
US4656068 *Jul 2, 1985Apr 7, 1987Plicon CorporationPellable seal package
US4859714 *Dec 20, 1988Aug 22, 1989Plan B, Inc.Process and composition for protecting and cushioning
US5006379 *Aug 14, 1989Apr 9, 1991Colgate-Palmolive CompanyLitter box liner
US5079269 *Mar 14, 1989Jan 7, 1992Plan B IncorporatedProcess and composition for protecting and cushioning protrusions
US5236728 *Jan 6, 1992Aug 17, 1993Plan B, Inc.Process for packaging food having a bag puncturing surface
US5302402 *Nov 20, 1992Apr 12, 1994Viskase CorporationBone-in food packaging article
US5328712 *Feb 24, 1993Jul 12, 1994Stevison Ham CompanyMethod of making a bone-in meat product
US5376394 *Jan 21, 1994Dec 27, 1994Viskase CorporationBone-in food packaging article and use field of the invention
US5387424 *Mar 23, 1994Feb 7, 1995Utah State UniversityProcess for bonding formed meat to bone
US5462756 *Apr 29, 1994Oct 31, 1995Plicon CorporationCook-in meat package
US5972041 *Jan 8, 1998Oct 26, 1999Creative Products Resource, Inc.Fabric-cleaning kits using sprays, dipping solutions or sponges containing fabric-cleaning compositions
US5997586 *Jan 13, 1998Dec 7, 1999Smith; James A.Dry-cleaning bag with an interior surface containing a dry-cleaning composition
US6036727 *Sep 29, 1997Mar 14, 2000Creative Products Resource, Inc.Anhydrous dry-cleaning compositions containing polysulfonic acid, and dry-cleaning kits for delicate fabrics
US6086634 *Aug 4, 1997Jul 11, 2000Custom Cleaner, Inc.Dry-cleaning compositions containing polysulfonic acid
US6179880Jun 29, 1999Jan 30, 2001Custom Cleaner, Inc.Fabric treatment compositions containing polysulfonic acid and organic solvent
US6238736Jul 24, 1998May 29, 2001Custom Cleaner, Inc.Process for softening or treating a fabric article
US6254932Mar 14, 2000Jul 3, 2001Custom Cleaner, Inc.Fabric softener device for in-dryer use
US6626312 *Nov 14, 2001Sep 30, 2003Javier Urzua MaturanaStorage bag
US6925781Feb 3, 2004Aug 9, 2005Playtex Products, Inc.Integrated cutting tool for waste disposal method and apparatus
US7100767Apr 17, 2003Sep 5, 2006Playtex Products, Inc.Odor transmission-resistant polymeric film
US7114534Dec 23, 2004Oct 3, 2006Playtex Products, Inc.Composite trash container
US7316100Sep 2, 2004Jan 8, 2008Playtex Products, Inc.Waste disposal device including a film cutting and sealing device
US7434377Sep 2, 2004Oct 14, 2008Playtex Products, Inc.Waste disposal device including a rotatable geared rim to operate a cartridge
US7503152Sep 2, 2004Mar 17, 2009Playtex Products, Inc.Waste disposal device including rotating cartridge coupled to lid
US7503159Sep 2, 2004Mar 17, 2009Playtex Products, Inc.Waste disposal device including an external actuation mechanism to operate a cartridge
US7594376Sep 1, 2004Sep 29, 2009Playtex Products, Inc.Automated twist diaper disposal apparatus
US7617659Sep 2, 2004Nov 17, 2009Playtex Products, Inc.Waste disposal device including a cartridge movable by rollers
US7694493Sep 2, 2004Apr 13, 2010Playtex Products, Inc.Waste disposal device including a geared rotating cartridge
US7707808Feb 16, 2007May 4, 2010Playtex Products, Inc.Cassette for an automated waste disposal device
US7708188Sep 2, 2004May 4, 2010Playtex Products, Inc.Waste disposal device including a hamper accessible through a movable door
US7712285Sep 2, 2004May 11, 2010Playtex Products, Inc.Waste disposal device including a sensing mechanism for delaying the rotation of a cartridge
US7757467Apr 17, 2003Jul 20, 2010Playtex Products, Inc.Disposable cassette for incremental withdrawal of tubular plastic with malodor-counteractant capacity
US7958704Sep 2, 2004Jun 14, 2011Playtex Products, Inc.Waste disposal device including a mechanism for scoring a flexible tubing dispensed from a cartridge
US8091325Sep 28, 2005Jan 10, 2012Playtex Products, Inc.Waste disposal device including a diaphragm for twisting a flexible tubing dispensed from a cartridge
US8356578Sep 23, 2011Jan 22, 2013Jenkins Dennis BWaste encapsulating animal litter
US8440316 *Jun 19, 2006May 14, 2013Playtex Products, Inc.Odor transmission-resistant polymeric film
US9102467Mar 27, 2006Aug 11, 2015Eveready Battery Company, Inc.Waste storage device
US9718614Nov 17, 2014Aug 1, 2017Edgewell Personal Care Brands, Llc.Waste storage device
US20030213804 *Apr 17, 2003Nov 20, 2003Chomik Richard S.Disposable cassette for incremental withdrawal of tubular plastic with malodor-counteractant capacity
US20030221323 *Apr 18, 2003Dec 4, 2003Deasis LesMethod and apparatus for securing a handle to a knife tang
US20030230579 *Apr 17, 2003Dec 18, 2003Chomik Richard S.Composite trash container
US20050044819 *Nov 6, 2003Mar 3, 2005Chomik Richard S.Waste storage device
US20050103499 *Dec 23, 2004May 19, 2005Chomik Richard S.Composite trash container
US20050115207 *Sep 1, 2004Jun 2, 2005Chomik Richard S.Automated twist diaper disposal apparatus
US20050183401 *Sep 2, 2004Aug 25, 2005Playtex Products, Inc.Waste disposal device including a film cutting and sealing device
US20050188661 *Sep 2, 2004Sep 1, 2005Playtex Products, Inc.Waste disposal device including rotating cartridge coupled to lid
US20050193691 *Sep 2, 2004Sep 8, 2005Stravitz David M.Waste disposal device including a rotatable geared rim to operate a cartridge
US20050193692 *Sep 2, 2004Sep 8, 2005Playtex Products, Inc.Waste disposal device including rotating cartridge coupled to hinged lid
US20050274093 *Sep 2, 2004Dec 15, 2005Playtex Products, Inc.Waste disposal device including a mechanism for scoring a flexible tubing dispensed from a cartridge
US20060130439 *Sep 28, 2005Jun 22, 2006Stravitz David MWaste disposal device including a diaphragm for twisting a flexible tubing dispensed from a cartridge
US20060237461 *Mar 27, 2006Oct 26, 2006Playtex Products, Inc.Waste storage device
US20060249418 *Jun 19, 2006Nov 9, 2006Playtex Products, Inc.Odor transmission-resistant polymeric film
US20070157582 *Feb 16, 2007Jul 12, 2007Playtex Products, Inc.Cassette for an automated waste disposal device
US20070175182 *Sep 2, 2004Aug 2, 2007Playtex Products, Inc.Waste disposal device including a sensing mechanism for delaying the rotation of a cartridge
US20070180798 *Sep 2, 2004Aug 9, 2007Playtex Products, Inc.Waste disposal device including a geared rotating cartridge
US20070246465 *Sep 2, 2004Oct 25, 2007Playtex Products, Inc.Waste disposal device including a hamper accessible through a movable door
US20080121640 *Sep 21, 2007May 29, 2008Chomik Richard SDisposable cassette for incremental withdrawal of tubular plastic with malodor-counteractant capacity
US20090000562 *Jun 10, 2008Jan 1, 2009The Clorox CompanyWaste encapsulating animal litter
US20150217915 *Sep 24, 2013Aug 6, 2015Juan Bautista GONZÁLEZ AGUILERAWrapper for meat from slaughtered animals
DE2952921C1 *Jun 22, 1979Aug 17, 1989Freyberg Chem Fab WernerVerfahren zur Begasung
WO1990000137A1 *Jun 30, 1989Jan 11, 1990Integrated Packaging Systems, Inc.Bone-in meat package and method and distribution system employing same
WO2014044897A1 *Sep 24, 2013Mar 27, 2014Gonzalez Aguilera Juan BautistaWrapper for meat from slaughtered animals
WO2016196075A1 *May 24, 2016Dec 8, 2016Triune Enterprises, Inc.Bone cover wrap and method for packaging bone-in meat products
Legal Events
DateCodeEventDescription
May 6, 1985ASAssignment
Owner name: AMERICAN CAN COMPANY, A CORP OF NJ
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHAMPION INTERNATIONAL CORPORATION;REEL/FRAME:004397/0333
Effective date: 19850501
Aug 14, 1987ASAssignment
Owner name: AMERICAN CAN PACKAGING INC., AMERICAN LANE, GREENW
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN CAN COMPANY, A NJ CORP.;REEL/FRAME:004835/0338
Effective date: 19861107
Owner name: AMERICAN NATIONAL CAN COMPANY
Free format text: MERGER;ASSIGNORS:AMERICAN CAN PACKAGING INC.;TRAFALGAR INDUSTRIES, INC. (MERGED INTO);NATIONAL CAN CORPORATION (CHANGED TO);REEL/FRAME:004835/0354
Effective date: 19870430
Owner name: AMERICAN CAN PACKAGING INC., CONNECTICUT
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN CAN COMPANY, A NJ CORP.;REEL/FRAME:004835/0338
Effective date: 19861107
Owner name: AMERICAN NATIONAL CAN COMPANY, STATELESS
Free format text: MERGER;ASSIGNORS:AMERICAN CAN PACKAGING INC.;TRAFALGAR INDUSTRIES, INC. (MERGED INTO);NATIONAL CAN CORPORATION (CHANGED TO);REEL/FRAME:004835/0354
Effective date: 19870430